+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   14206 Sehnal (1999 CL10) Classification: Outer Main-belt Asteroid          SPK-ID: 2014206 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 36 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .174201192380472 3.2347e-08   a 3.221071805017715 1.6866e-08 au q 2.65995725584051 1.0109e-07 au i 8.43047162817037 2.978e-06 deg node 117.1986763367431 2.6894e-05 deg peri 233.3610399513026 2.8905e-05 deg M 47.07036012063816 1.0067e-05 deg tp 2458924.414208542983 (2020-Mar-15.91420854) 5.906e-05 TDB period 2111.53865553172 5.78 1.6584e-05 4.54e-08 d yr n .1704917876151058 1.3391e-09 deg/d Q 3.78218635419492 1.9804e-08 au   Orbit Determination Parameters    # obs. used (total)      2350      data-arc span      12987 days (35.56 yr)      first obs. used      1985-08-22      last obs. used      2021-03-13      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .44967      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 00:19:59   Additional Information  Earth MOID = 1.66242 au   Jupiter MOID = 1.67907 au   T_jup = 3.148  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 12.99   n/a E2021B10   diameter diameter 14.546 km 0.259 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.076   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   14206 Sehnal           Discovered 1999 Feb. 15 by M. Tichy and Z. Moravec at Klet. Ladislav Sehnal (b. 1931) is known for his work on the effects of solar radiation and atmospheric drag on the motions of artificial satellites and the theory of space accelerometric measurements. He served as director of the Astronomical Institute of the Czech Academy of Sciences during 1990-1996. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20010309/MPCPages.arc Last Updated: 2009-05-11 [ show close-approach data ] Alternate Designations  1999 CL10 = 1985 QJ = 1991 RK25 = 1994 CA14 = 1998 XQ96  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-16 17:45 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin